Copy-editor or copy editor?

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From Phillip Lopate, "No wigs, no midgets," The Times Literary Supplement (Jun 19, 2025) p. 26:

Mary Norris's Between You [and] Me: Confessions of a comma queen provides an insider's view of the New Yorker's fact-checking procedures. ... Norris is at pains to assure us that copy-editors can be earthy, lustful, hard-drinking and good-humored, though she knows the stereotype runs otherwise:

The image of the copy editor is of someone who favors a rigid consistency . ...

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JB query: So, what should it be: copy-editor or copy editor?